, SOLUTION MANUAL FOR Supply Chain
Management A Logistics Perspective 12th Edition
Langley
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
Solution and Answer Guide
LANGLEY/NOVACK/GIBSON, SUPPLY CHAIN MANAGEMENT, 12E, © 2025, 9780357984864;
CHAPTER 1: SUPPLY CHAIN MANAGEMENT: AN OVERVIEW
TABLE OF CONTENTS
Answers to Study Questions ..................................................................................................... 1
Chapter case 1.1..........................................................................................................................9
Case Questions ....................................................................................................................... 10
Chapter case 1.2........................................................................................................................10
Case Questions ....................................................................................................................... 11
ANSWERS TO STUDY QUESTIONS
1. Globalization and technology developments have led to some significant changes in the
global economy. Discuss the importance of such changes to the United States. What is the
impact upon supply chains?
Answer: Globalization was the most frequently cited change factor by business leaders, and it
replaced the post-World War II Cold War as the dominant driving force in world economics. The
concept of the global marketplace or the global economy took on a special meaning for all
enterprises (profit and nonprofit; small, medium, and large; products or services) and for
individual consumers in the 1990s and the first decade of the 21st century. Globalization led to a
more competitive economic and geopolitical environment which resulted in opportunities and
threats both economic and political. Some individuals have argued that there is no “geography” in
the current global environment (figuratively speaking) or, perhaps more aptly, that TIME AND
DISTANCE have been compressed.
Supply and demand have become more volatile for numerous reasons. Acts of terrorism, for
example, the ISIS attacks in the Middle East and pirates attacking cargo ships, have serious
implications for the flow of commerce. Companies have put security measures in place to protect
their global supply chains and to act quickly to offset challenges to their supply chains which has
increased their cost, but the risk is ever present. Natural catastrophes such as hurricanes, floods,
typhoons and earthquakes have become more problematic because of climate changes and
because they pose a very significant challenge for global supply chains. Challenges to supply and
demand are usually exacerbated in number and severity by the distances involved, which
necessitates risk mitigation strategies.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 1
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
It has been argued that an interruption or disruption to a supply chain that cuts off the flow of
information and products is analogous to a heart attack that cuts off the flow of blood to the heart.
Like a heart attack, supply chain disruption can have lasting effects. The global supply chains of
the best companies must be adaptive, resilient and responsive to meet the challenges of the
global economy and develop mitigating strategies for disruptive forces.
Shorter product life cycles are a manifestation of the ability of products and services to be duplicated
quickly. Technology companies are particularly vulnerable to the threat of their new products being re-
engineered. However, almost all products in the highly competitive global environment are faced with
this issue. From a supply chain perspective, shorter product life cycles present a challenge for
inventory management. Products that are duplicated will most likely face a faster reduction in demand
and require new pricing policies, both of which present challenges to effective inventory management.
The risk of obsolescence as new products are developed is another challenge for inventory
management. It also means continually developing new products or reconfiguring old products to
maintain market share. The rate of development and change in technology is particularly disruptive to
existing enterprises and has led to the demise of some.
A strong complement to the growth in the global economy has been the growth and development in the
technology related to supply chains. Mention has been made of time and distance being compressed,
and technology has certainly played a major role in making this happen. Technology has had a major
impact on supply chains as a facilitator of change as companies have transformed their processes.
However, it is also a major force in changing the dynamics of the marketplace. Individuals and
organizations are “connected” 24/7 and have access to information on the same basis via the Internet.
Search engines, such as Google and others, have made it possible to gather timely information quickly.
We no longer have to wait for information to be “pushed out” to us; we can “pull” information as we
need it. Vast stores of data and information are virtually at our fingertips. Social networks such as
Facebook or Twitter are playing an ever-increasing role in business organizations and influence supply
chains because of their impact on customer demand and the speed of information transfers.
Technology has allowed individuals and smaller organizations to connect to the world’s “knowledge
pools” to create and establish opportunities for collaboration in supply chains. Outsourcing to the less-
developed countries was enhanced by technology. Collaboration opportunities with individuals and
companies throughout the globe have increased which has created market opportunities as
employment opportunities increased.
2. The consolidation that has developed at the retail end of many supply chains has had an
important impact. What changes have occurred in supply chain management because of
retail consolidation and the related power shift?
Answer: During the 1980s and especially the 1990s, a significant change occurred as retail
giants such as Wal-Mart, Sears, Kmart, Home Depot, Target, Kroger, and McDonald’s became
powerful market leaders and engines for change. While other retailers are not as large as Wal-
Mart, their size and economic buying power have also increased significantly. An important
aspect of the economic power shift toward the retail end of the supply chain is that many
consumer product companies find that 15 to 20 percent of their customers account for 70 to 80
percent of their total sales.
The large retailers were accorded services such as scheduled deliveries, “rainbow” pallets [mixed
arrays of products or stock-keeping units (SKUs)], advance shipments notices (ASNs) shrink-
wrapped pallets, etc. These services allowed retailers to operate more efficiently and often more
effectively and provide scale economies to the producers which was a win-win arrangement with
savings passed on to the consumer.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 2
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
As more collaboration is practiced among organizations in the supply chains; they can gain shared
cost savings and improved customer service. For example, sharing point-of-sale data is a powerful
collaborative tool for mitigating the so-called BULL WHIP EFFECT of inventory in the supply chain
which has multiple benefits for supply chain collaborators. Companies that report innovative best
practices usually obtain about half of their innovative insights outside their company through
collaboration with suppliers and customers. The power of information sharing, and collaboration
cannot be overstated.
3. Consumers have much more influence in the marketplace today. What factors have led to
this “empowered consumer” situation? How has this factor changed supply chains in the
last 10 years? Will consumer influence continue, and what will be the impact on supply
chains?
Answer: An important aspect of the economic power shift toward the retail end of the supply
chain is that many consumer product companies find that 15 to 20 percent of their customers
account for 70 to 80 percent of their total sales.
The large retailers were accorded services such as scheduled deliveries, “rainbow” pallets [mixed
arrays of products or stock-keeping units (SKUs)], advance shipments notices (ASNs) shrink-
wrapped pallets, etc. These services allowed retailers to operate more efficiently and often more
effectively and provide scale economies to the producers which was a win-win arrangement with
savings passed on to the consumer.
Recent expansion of the omni-channel phenomenon results from changing preference of
consumers for electronic buying, convenient deliveries, and ease of managing product returns.
This influence has already had significant impacts on supply chains in most industries and will
further develop into the future.
4. Describe the three phases of the evolution of the supply chain concept
Answer: The first phase started in the 1960s with the development of the physical distribution
concept that focuses on the outbound side of a firm’s logistics system. The system relationships
among transportation, inventory requirements, warehousing, exterior packaging, materials handling,
and other activities or cost centers were recognized. For example, the selection and use of a mode of
transportation, such as rail, affects inventory, warehousing, packaging, customer service, and
materials-handling costs, whereas motor carrier service would probably have a different impact on the
same cost centers. The decision should be based upon lowest total system cost. The systems
perspective is also an important concept underlying supply chain management.
The second phase was during the 1980s, which was a decade of change in the United States with
the deregulation of transportation and financial institutions, and the integrated logistics
management concept which added inbound logistics to the outbound logistics of physical
distributions developed in a growing number of organizations. This was logical since deregulation of
transportation provided an opportunity to coordinate inbound and outbound transportation
movements of large shippers, which could positively impact a carrier’s operating cost by minimizing
empty backhauls, leading to lower rates for the shipper. Also, international or global sourcing of
materials and supplies for inbound systems was growing in importance. Therefore, it became
increasingly apparent that coordination between the outbound and inbound logistics systems
provided opportunities for increased efficiency and improved customer service.
Supply chain management represents the third phase of the evolution of the supply chain concept.
This phase was created from the underlying logic of the systems or total cost concept and was
also the rationale for logistics management. Porter’s value chain concept was developed as a tool
for competitive analysis and strategy. The value chain identifies inbound and outbound logistics as
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 3
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
primary components of the value chain; that is, they can contribute value for customers and make
the company financially viable to increase sales and improve cash flow. The more integrated nature
of marketing, sales, and manufacturing with logistics is also an important dimension of the value
chain and has become more important with the supply chain management focus.
5. Why should senior executives be concerned about supply chain management in their
organizations? How can effective Supply Chain Management improve the financial viability
of their companies?
Answer: Supply chain management attracts significant attention among CEOs, CFOs, COOs, CIOs,
and other senior executives, and the business case for supply chain management demonstrated by
two well-known studies in the text provides ample reasons.
The potential savings of $30 billion demonstrated in the grocery study showed the power of
optimizing the supply chain as opposed to just one individual company or one segment of the
supply chain.
A study of “best-in-class” companies showed they spent 7.0 cents of every sales/revenue dollar
on supply chain-related costs, while the median company spent 13.1 cents of every sales dollar
on supply chain-related costs. For a hypothetical company with $100 million in sales in 1997,
being best in class would mean an additional $5.3 million of gross profit to an organization, which
frequently would be the equivalent profit from an additional $80–100 million of sales.
6. Supply chains encompass four flows. Describe the four flows. Why are they important?
How are they related to each other?
Answer: The four flows—products and services, information, financials and demand—are very
important to the success of supply chain management. Integration across the boundaries of
several organizations in essence means that the supply chain needs to function similarly to one
organization in satisfying the ultimate customer.
Services and products have traditionally been an important focus as customers
expect their orders to be delivered in a timely, reliable, and damage-free manner; and
transportation is critical to this outcome. The information flow has become an extremely important
factor for success in supply chain management, noting the two-way flow. The third flow is financials
or, more specifically, cash, and a major impact of supply chain compression and faster order
cycle times has been faster cash flow. The fourth flow demand reflects the growth in technology
which provides organizations the ability to better synchronize supply and demand by detecting
and understanding demand “signals” and making appropriate adjustments to inventory
replenishment and order fulfillment.
7. During the 1980s and 1990s, managing the transportation function in supply chains was
recognized as being important but not critical. Has this perspective changed, and if so,
how and why? What special challenges does transportation face in the future?
Answer: Transportation can be viewed as the glue that unites the supply chain model. The
critical outcomes of the supply chain are to deliver the right product, at the right time, in the right
quantity and quality, at the right cost, and to the right destination. Economic changes among
transportation providers, such as shortages of drivers, higher fuel costs, and changes in driver
hours of service regulations, have led to what some individuals have called a transportation crisis
or the “perfect storm,” a much greater challenge for users.
Transportation has gone from being a readily available commodity to potential users, especially in
the 1990s, to today where transportation service can be scarce in some market areas. A major
challenge is the maintenance of the existing transportation infrastructure (roads, bridges, ports,
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 4
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
waterways, tracks, and airports) and the need to increase capacity to meet the growth in demand.
The transportation infrastructure is a major cause of concern for global supply chains especially
for water transportation in the port areas.
8. Collaboration is a very critical ingredient for successful supply chains. Why? What types
of collaboration are important? What are some of the challenges and issues that need to
be addressed?
Answer: Supply chain management emphasizes a horizontal process orientation which cuts
across traditional functional silos within organizations and necessitates collaboration with external
vendors, customers, transportation companies, 3 PLs, and others in the supply chain. In other
words, internal collaboration or cooperation with marketing, sales, operations/manufacturing, and
accounting/finance is very important as well as collaboration or cooperation with external
organizations. Communication is critical to explain the opportunities for system tradeoffs that will
make the supply chain more competitive.
Some of the challenges are optimizing between various entities and ensuring the least cost
solution is achieved even if some of those entities have a higher cost.
9. Why is information so important in supply chains? What are the challenges to the
successful development and implementation of effective information? What is the role of
technology and information management?
Answer: The technology and communication systems that are available to organizations today
lead to the collection and storage of vast amounts of data. But, interestingly enough,
organizations may not be taking advantage of the abundant data to develop information systems
to improve decision making. The accumulation and storage of data unless they are shared
horizontally and vertically in the supply chain and used to make better decisions about inventory,
customer service, transportation, etc., are almost useless. Information can be a powerful tool if it
is timely, accurate, managed, and shared. It can be a substitute for inventory because it can
reduce uncertainty. The latter is one of the major causes of higher inventory levels because it
leads to the accumulation of safety stock. The challenge, frequently, is the sharing of information
along the supply chain and the discipline to ensure the integrity of the data collected—a big
challenge but one with much potential.
10. Describe the major challenges and issues facing supply chains in the future.
Answer: The challenge to develop and sustain an efficient and effective supply chain(s) requires
organizations to address a number of issues. Several of the more prevalent ones are summarized
as follows:
Supply Chain Networks
Network facilities (plants, distribution centers, terminals, etc.) and the supporting transportation
services are considered to be very important. However, the network system in a dynamic, global
environment is critical. One of the challenges is the rapid changes that can take place.
Companies and other organizations need a network system that is capable and flexible to
respond and change with the dynamics of the marketplace whether in the short run or the long
run.
Complexity
The globalization and consolidation in supply chains have caused an increased complexity for
organizations in terms of SKUs, customer and supplier locations, transportation requirements, trade
regulations, taxes, and so forth. Companies need to take steps to simplify, as much as possible, the
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 5
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
various aspects of their supply chains. For example, the number of SKUs has expanded for many
companies, which exacerbates problems for inventory management and order fulfillment.
Consequently, companies have been rationalizing SKUs to eliminate the slow movers and items
that do not contribute to profitability. Locations also need to be analyzed to eliminate high-cost or
duplicative operations. Customer service levels need to be rationalized as do vendors or supplier
alternatives. Layers of complexity develop and may seem necessary, but organizations need to
continually evaluate those areas of complexity by evaluating processes, training people and
exploiting technology.
Inventory Deployment
Two interesting characteristics of supply chains are that inventory is often being duplicated along
the chain and the bullwhip effect. Effective SCM usually provides an opportunity to reduce
inventory levels. Coordination or integration can help reduce inventory levels on horizontal single-
firm) and vertical (multiple-firms) levels in the supply chain. Strategies such as compression and
postponement can also have a positive impact. Inventory deployment is an important issue for
supply chains because of the associated cost and related opportunities for increased efficiency.
However, it is important to remember that inventory is a necessary ingredient for successful
supply chains, but inventory levels must be managed carefully to reduce working capital. As
discussed in the next section and subsequent chapters, information technology is a key
ingredient for efficiency of inventory management.
Information
The technology and communication systems that are available to organizations today lead to the
collection and storage of vast amounts of data. But interestingly enough, organizations may not
be taking advantage of the abundant data to develop information systems to improve decision
making. The accumulation and storage of data unless it is shared horizontally and vertically in the
supply chain and is used to make better decisions about inventory, customer service,
transportation, etc., is almost useless. Information can be a powerful tool if it is timely, accurate,
managed, and shared. It can be a substitute for inventory because it can reduce uncertainty. The
latter is one of the major causes of higher inventory levels because it leads to the accumulation of
safety stock. The challenge, frequently, is the sharing of information along the supply chain and
the discipline to ensure the integrity of the data collected—a big challenge but one with much
potential.
Cost and Value
Frequent reference has been made in this chapter to efficiency (cost) and effectiveness (value). A
challenge for supply chains is the prevention of sub-optimization. In today’s environment, global
supply chains compete against global supply chains, which means that the cost and value at the
end of the supply chain are critical. This is another reason why supply chain collaboration is so
important. All the members of a supply chain need to appreciate and understand the challenges
and issues along the supply chain.
Organizational Relationships
Supply chain management emphasizes a horizontal process orientation that cuts across
traditional functional silos within organizations and necessitates collaboration with external
vendors, customers, transportation companies, 3PLs, and other service providers in the supply
chain. In other words, internal collaboration or cooperation with marketing, sales, operations or
manufacturing, and accounting or finance is very important as well as collaboration or
cooperation with external organizations.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 6
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
Communication is critical to explain the opportunities for system tradeoffs that will make the
supply chain more competitive. For example, the vice president of manufacturing may present a
rationale for operating plants on a 24/7 basis to lower production costs, but what about the cost of
warehousing and inventory of goods that have to be stored until sales are finalized? Looking at
manufacturing cost in isolation could lead to higher overall system costs.
Performance Measurement
Most organizations have measures of performance or metrics in place to analyze and evaluate
their efficiency and progress over different time periods. Sometimes, such measures are used for
setting baseline performance objectives or expected outcomes, for example, orders filled and
shipped per day. At this juncture, it is important to recognize that lower-level metrics in an
organization must connect directly to the high-level performance measures of the organization
and the supply chain, which are usually net profit, return on investment, or assets and cash flow.
In some instances, metrics are set that appear logical for the subunit of the organization but are
suboptimal for the overall organization or supply chain. The previous example of the vice
president running the plants 24/7 to achieve the lowest possible unit cost of products could have
been saving 3 cents per unit on manufacturing, but the extra expense of holding excess inventory
could have cost 4 to 5 cents per unit, thus lowering the company’s net profit margin. The
warehouse manager who is measured by the cost per cubic foot of units stored will be motivated
to fill the warehouse to the ceiling (what is the tradeoff cost?). Consequently, the overall financial
metrics of an organization should be the “drivers” of the lower level metrics.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 7
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
Technology
Technology, as indicated previously, can be viewed as a change driver, but it is also important as a
facilitator of change that can provide improved efficiency and effectiveness. The challenge is to
evaluate and successfully implement the technology to make the improvements desired. Sometimes
technology is, figuratively speaking, thrown at a problem, which usually leads to frustration and then
failure. The approach necessary is to analyze and then adjust or change processes, educate the
people involved, and then select and implement the technology to facilitate the changes in the
processes. Skipping the first two steps is analogous to the frequently cited bad approach to strategic
planning—ready, fire, aim. The technology available today is almost overwhelming, but analysis and
planning are necessary to achieve the expected outcomes. Technology cannot solve or mitigate
problems without appropriate up-front analysis and planning.
Transportation Management
Transportation can be viewed as the glue that helps the supply chain system function. The critical
outcomes of the supply chain are “TO DELIVER THE RIGHT PRODUCT AT THE RIGHT TIME,
IN THE RIGHT QUANTITY AND QUALITY, AT THE RIGHT COST, AND TO THE RIGHT
DESTINATION.” Transportation plays an important role in making these “rights” happen. Another
aspect of the importance of transportation is related to some of the strategies that are being used
by companies to remain competitive in today’s economy—for example, just-in-time inventory,
lean logistics and manufacturing, and scheduled and one-day deliveries. The challenge has been
exacerbated by challenges and changes among transportation providers; shortages of drivers,
fuel costs, and changes in driver hour regulations, which have led to what some individuals have
called a transportation crisis or the “perfect storm.” Transportation has gone from being a readily
available commodity to potential users, especially in the 1990s, to today where transportation
service can be scarce in some market areas. A major challenge is the maintenance of the
existing transportation infrastructure (roads, bridges, ports, waterways, tracks, and airports) and
the need to increase capacity to meet the growth in demand. The transportation infrastructure is a
major cause of concern for global supply chains especially for water transportation in the port
areas.
Supply Chain Security
As indicated, safe, reliable delivery of products to customers is expected of the supply chain. In
the past, this was often accepted as a given, but today it is a concern and potential challenge.
Globalization has obviously increased the risk of supply chain disruptions. Consequently,
organizations must be prepared for potential disruption. Terroristic threats have changed some of
the planning and preparation for supply chains that now often include some type of scenario
analysis that can consider possible threats, assess probabilities, and plan for alternatives. This
situation is not likely to improve in the near future, and companies need to be prepared. With
global supply chains, vulnerability is exacerbated by distance and complexity.
Talent Management
As supply chains have become more complex and comprehensive for reasons explicated in this
chapter and subsequent chapters, the criticality of having educated and talented managers
involved in supply chains has attracted much more attention in many organizations. The effort to
attract, develop and maintain the appropriate pool of talent from entry level to executive level is
attracting much more attention. At one time, it was assumed that anyone with experience in
another functional area of the organization (marketing, manufacturing, accounting, etc.) could
easily transition to a position in logistics and/or supply chain management. While that still does
occur, most organizations recognize that the complex and special challenge of 21st-century
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 8
publicly accessible website, in whole or in part.
Management A Logistics Perspective 12th Edition
Langley
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
Solution and Answer Guide
LANGLEY/NOVACK/GIBSON, SUPPLY CHAIN MANAGEMENT, 12E, © 2025, 9780357984864;
CHAPTER 1: SUPPLY CHAIN MANAGEMENT: AN OVERVIEW
TABLE OF CONTENTS
Answers to Study Questions ..................................................................................................... 1
Chapter case 1.1..........................................................................................................................9
Case Questions ....................................................................................................................... 10
Chapter case 1.2........................................................................................................................10
Case Questions ....................................................................................................................... 11
ANSWERS TO STUDY QUESTIONS
1. Globalization and technology developments have led to some significant changes in the
global economy. Discuss the importance of such changes to the United States. What is the
impact upon supply chains?
Answer: Globalization was the most frequently cited change factor by business leaders, and it
replaced the post-World War II Cold War as the dominant driving force in world economics. The
concept of the global marketplace or the global economy took on a special meaning for all
enterprises (profit and nonprofit; small, medium, and large; products or services) and for
individual consumers in the 1990s and the first decade of the 21st century. Globalization led to a
more competitive economic and geopolitical environment which resulted in opportunities and
threats both economic and political. Some individuals have argued that there is no “geography” in
the current global environment (figuratively speaking) or, perhaps more aptly, that TIME AND
DISTANCE have been compressed.
Supply and demand have become more volatile for numerous reasons. Acts of terrorism, for
example, the ISIS attacks in the Middle East and pirates attacking cargo ships, have serious
implications for the flow of commerce. Companies have put security measures in place to protect
their global supply chains and to act quickly to offset challenges to their supply chains which has
increased their cost, but the risk is ever present. Natural catastrophes such as hurricanes, floods,
typhoons and earthquakes have become more problematic because of climate changes and
because they pose a very significant challenge for global supply chains. Challenges to supply and
demand are usually exacerbated in number and severity by the distances involved, which
necessitates risk mitigation strategies.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 1
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
It has been argued that an interruption or disruption to a supply chain that cuts off the flow of
information and products is analogous to a heart attack that cuts off the flow of blood to the heart.
Like a heart attack, supply chain disruption can have lasting effects. The global supply chains of
the best companies must be adaptive, resilient and responsive to meet the challenges of the
global economy and develop mitigating strategies for disruptive forces.
Shorter product life cycles are a manifestation of the ability of products and services to be duplicated
quickly. Technology companies are particularly vulnerable to the threat of their new products being re-
engineered. However, almost all products in the highly competitive global environment are faced with
this issue. From a supply chain perspective, shorter product life cycles present a challenge for
inventory management. Products that are duplicated will most likely face a faster reduction in demand
and require new pricing policies, both of which present challenges to effective inventory management.
The risk of obsolescence as new products are developed is another challenge for inventory
management. It also means continually developing new products or reconfiguring old products to
maintain market share. The rate of development and change in technology is particularly disruptive to
existing enterprises and has led to the demise of some.
A strong complement to the growth in the global economy has been the growth and development in the
technology related to supply chains. Mention has been made of time and distance being compressed,
and technology has certainly played a major role in making this happen. Technology has had a major
impact on supply chains as a facilitator of change as companies have transformed their processes.
However, it is also a major force in changing the dynamics of the marketplace. Individuals and
organizations are “connected” 24/7 and have access to information on the same basis via the Internet.
Search engines, such as Google and others, have made it possible to gather timely information quickly.
We no longer have to wait for information to be “pushed out” to us; we can “pull” information as we
need it. Vast stores of data and information are virtually at our fingertips. Social networks such as
Facebook or Twitter are playing an ever-increasing role in business organizations and influence supply
chains because of their impact on customer demand and the speed of information transfers.
Technology has allowed individuals and smaller organizations to connect to the world’s “knowledge
pools” to create and establish opportunities for collaboration in supply chains. Outsourcing to the less-
developed countries was enhanced by technology. Collaboration opportunities with individuals and
companies throughout the globe have increased which has created market opportunities as
employment opportunities increased.
2. The consolidation that has developed at the retail end of many supply chains has had an
important impact. What changes have occurred in supply chain management because of
retail consolidation and the related power shift?
Answer: During the 1980s and especially the 1990s, a significant change occurred as retail
giants such as Wal-Mart, Sears, Kmart, Home Depot, Target, Kroger, and McDonald’s became
powerful market leaders and engines for change. While other retailers are not as large as Wal-
Mart, their size and economic buying power have also increased significantly. An important
aspect of the economic power shift toward the retail end of the supply chain is that many
consumer product companies find that 15 to 20 percent of their customers account for 70 to 80
percent of their total sales.
The large retailers were accorded services such as scheduled deliveries, “rainbow” pallets [mixed
arrays of products or stock-keeping units (SKUs)], advance shipments notices (ASNs) shrink-
wrapped pallets, etc. These services allowed retailers to operate more efficiently and often more
effectively and provide scale economies to the producers which was a win-win arrangement with
savings passed on to the consumer.
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a 2
publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
As more collaboration is practiced among organizations in the supply chains; they can gain shared
cost savings and improved customer service. For example, sharing point-of-sale data is a powerful
collaborative tool for mitigating the so-called BULL WHIP EFFECT of inventory in the supply chain
which has multiple benefits for supply chain collaborators. Companies that report innovative best
practices usually obtain about half of their innovative insights outside their company through
collaboration with suppliers and customers. The power of information sharing, and collaboration
cannot be overstated.
3. Consumers have much more influence in the marketplace today. What factors have led to
this “empowered consumer” situation? How has this factor changed supply chains in the
last 10 years? Will consumer influence continue, and what will be the impact on supply
chains?
Answer: An important aspect of the economic power shift toward the retail end of the supply
chain is that many consumer product companies find that 15 to 20 percent of their customers
account for 70 to 80 percent of their total sales.
The large retailers were accorded services such as scheduled deliveries, “rainbow” pallets [mixed
arrays of products or stock-keeping units (SKUs)], advance shipments notices (ASNs) shrink-
wrapped pallets, etc. These services allowed retailers to operate more efficiently and often more
effectively and provide scale economies to the producers which was a win-win arrangement with
savings passed on to the consumer.
Recent expansion of the omni-channel phenomenon results from changing preference of
consumers for electronic buying, convenient deliveries, and ease of managing product returns.
This influence has already had significant impacts on supply chains in most industries and will
further develop into the future.
4. Describe the three phases of the evolution of the supply chain concept
Answer: The first phase started in the 1960s with the development of the physical distribution
concept that focuses on the outbound side of a firm’s logistics system. The system relationships
among transportation, inventory requirements, warehousing, exterior packaging, materials handling,
and other activities or cost centers were recognized. For example, the selection and use of a mode of
transportation, such as rail, affects inventory, warehousing, packaging, customer service, and
materials-handling costs, whereas motor carrier service would probably have a different impact on the
same cost centers. The decision should be based upon lowest total system cost. The systems
perspective is also an important concept underlying supply chain management.
The second phase was during the 1980s, which was a decade of change in the United States with
the deregulation of transportation and financial institutions, and the integrated logistics
management concept which added inbound logistics to the outbound logistics of physical
distributions developed in a growing number of organizations. This was logical since deregulation of
transportation provided an opportunity to coordinate inbound and outbound transportation
movements of large shippers, which could positively impact a carrier’s operating cost by minimizing
empty backhauls, leading to lower rates for the shipper. Also, international or global sourcing of
materials and supplies for inbound systems was growing in importance. Therefore, it became
increasingly apparent that coordination between the outbound and inbound logistics systems
provided opportunities for increased efficiency and improved customer service.
Supply chain management represents the third phase of the evolution of the supply chain concept.
This phase was created from the underlying logic of the systems or total cost concept and was
also the rationale for logistics management. Porter’s value chain concept was developed as a tool
for competitive analysis and strategy. The value chain identifies inbound and outbound logistics as
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, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
primary components of the value chain; that is, they can contribute value for customers and make
the company financially viable to increase sales and improve cash flow. The more integrated nature
of marketing, sales, and manufacturing with logistics is also an important dimension of the value
chain and has become more important with the supply chain management focus.
5. Why should senior executives be concerned about supply chain management in their
organizations? How can effective Supply Chain Management improve the financial viability
of their companies?
Answer: Supply chain management attracts significant attention among CEOs, CFOs, COOs, CIOs,
and other senior executives, and the business case for supply chain management demonstrated by
two well-known studies in the text provides ample reasons.
The potential savings of $30 billion demonstrated in the grocery study showed the power of
optimizing the supply chain as opposed to just one individual company or one segment of the
supply chain.
A study of “best-in-class” companies showed they spent 7.0 cents of every sales/revenue dollar
on supply chain-related costs, while the median company spent 13.1 cents of every sales dollar
on supply chain-related costs. For a hypothetical company with $100 million in sales in 1997,
being best in class would mean an additional $5.3 million of gross profit to an organization, which
frequently would be the equivalent profit from an additional $80–100 million of sales.
6. Supply chains encompass four flows. Describe the four flows. Why are they important?
How are they related to each other?
Answer: The four flows—products and services, information, financials and demand—are very
important to the success of supply chain management. Integration across the boundaries of
several organizations in essence means that the supply chain needs to function similarly to one
organization in satisfying the ultimate customer.
Services and products have traditionally been an important focus as customers
expect their orders to be delivered in a timely, reliable, and damage-free manner; and
transportation is critical to this outcome. The information flow has become an extremely important
factor for success in supply chain management, noting the two-way flow. The third flow is financials
or, more specifically, cash, and a major impact of supply chain compression and faster order
cycle times has been faster cash flow. The fourth flow demand reflects the growth in technology
which provides organizations the ability to better synchronize supply and demand by detecting
and understanding demand “signals” and making appropriate adjustments to inventory
replenishment and order fulfillment.
7. During the 1980s and 1990s, managing the transportation function in supply chains was
recognized as being important but not critical. Has this perspective changed, and if so,
how and why? What special challenges does transportation face in the future?
Answer: Transportation can be viewed as the glue that unites the supply chain model. The
critical outcomes of the supply chain are to deliver the right product, at the right time, in the right
quantity and quality, at the right cost, and to the right destination. Economic changes among
transportation providers, such as shortages of drivers, higher fuel costs, and changes in driver
hours of service regulations, have led to what some individuals have called a transportation crisis
or the “perfect storm,” a much greater challenge for users.
Transportation has gone from being a readily available commodity to potential users, especially in
the 1990s, to today where transportation service can be scarce in some market areas. A major
challenge is the maintenance of the existing transportation infrastructure (roads, bridges, ports,
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publicly accessible website, in whole or in part.
, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
waterways, tracks, and airports) and the need to increase capacity to meet the growth in demand.
The transportation infrastructure is a major cause of concern for global supply chains especially
for water transportation in the port areas.
8. Collaboration is a very critical ingredient for successful supply chains. Why? What types
of collaboration are important? What are some of the challenges and issues that need to
be addressed?
Answer: Supply chain management emphasizes a horizontal process orientation which cuts
across traditional functional silos within organizations and necessitates collaboration with external
vendors, customers, transportation companies, 3 PLs, and others in the supply chain. In other
words, internal collaboration or cooperation with marketing, sales, operations/manufacturing, and
accounting/finance is very important as well as collaboration or cooperation with external
organizations. Communication is critical to explain the opportunities for system tradeoffs that will
make the supply chain more competitive.
Some of the challenges are optimizing between various entities and ensuring the least cost
solution is achieved even if some of those entities have a higher cost.
9. Why is information so important in supply chains? What are the challenges to the
successful development and implementation of effective information? What is the role of
technology and information management?
Answer: The technology and communication systems that are available to organizations today
lead to the collection and storage of vast amounts of data. But, interestingly enough,
organizations may not be taking advantage of the abundant data to develop information systems
to improve decision making. The accumulation and storage of data unless they are shared
horizontally and vertically in the supply chain and used to make better decisions about inventory,
customer service, transportation, etc., are almost useless. Information can be a powerful tool if it
is timely, accurate, managed, and shared. It can be a substitute for inventory because it can
reduce uncertainty. The latter is one of the major causes of higher inventory levels because it
leads to the accumulation of safety stock. The challenge, frequently, is the sharing of information
along the supply chain and the discipline to ensure the integrity of the data collected—a big
challenge but one with much potential.
10. Describe the major challenges and issues facing supply chains in the future.
Answer: The challenge to develop and sustain an efficient and effective supply chain(s) requires
organizations to address a number of issues. Several of the more prevalent ones are summarized
as follows:
Supply Chain Networks
Network facilities (plants, distribution centers, terminals, etc.) and the supporting transportation
services are considered to be very important. However, the network system in a dynamic, global
environment is critical. One of the challenges is the rapid changes that can take place.
Companies and other organizations need a network system that is capable and flexible to
respond and change with the dynamics of the marketplace whether in the short run or the long
run.
Complexity
The globalization and consolidation in supply chains have caused an increased complexity for
organizations in terms of SKUs, customer and supplier locations, transportation requirements, trade
regulations, taxes, and so forth. Companies need to take steps to simplify, as much as possible, the
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, Solution and Answer Guide: Langley/Novack/Gibson, Supply Chain Management, 12e, © 2025, 9780357984864;
Chapter 1: Supply Chain Management: An Overview
various aspects of their supply chains. For example, the number of SKUs has expanded for many
companies, which exacerbates problems for inventory management and order fulfillment.
Consequently, companies have been rationalizing SKUs to eliminate the slow movers and items
that do not contribute to profitability. Locations also need to be analyzed to eliminate high-cost or
duplicative operations. Customer service levels need to be rationalized as do vendors or supplier
alternatives. Layers of complexity develop and may seem necessary, but organizations need to
continually evaluate those areas of complexity by evaluating processes, training people and
exploiting technology.
Inventory Deployment
Two interesting characteristics of supply chains are that inventory is often being duplicated along
the chain and the bullwhip effect. Effective SCM usually provides an opportunity to reduce
inventory levels. Coordination or integration can help reduce inventory levels on horizontal single-
firm) and vertical (multiple-firms) levels in the supply chain. Strategies such as compression and
postponement can also have a positive impact. Inventory deployment is an important issue for
supply chains because of the associated cost and related opportunities for increased efficiency.
However, it is important to remember that inventory is a necessary ingredient for successful
supply chains, but inventory levels must be managed carefully to reduce working capital. As
discussed in the next section and subsequent chapters, information technology is a key
ingredient for efficiency of inventory management.
Information
The technology and communication systems that are available to organizations today lead to the
collection and storage of vast amounts of data. But interestingly enough, organizations may not
be taking advantage of the abundant data to develop information systems to improve decision
making. The accumulation and storage of data unless it is shared horizontally and vertically in the
supply chain and is used to make better decisions about inventory, customer service,
transportation, etc., is almost useless. Information can be a powerful tool if it is timely, accurate,
managed, and shared. It can be a substitute for inventory because it can reduce uncertainty. The
latter is one of the major causes of higher inventory levels because it leads to the accumulation of
safety stock. The challenge, frequently, is the sharing of information along the supply chain and
the discipline to ensure the integrity of the data collected—a big challenge but one with much
potential.
Cost and Value
Frequent reference has been made in this chapter to efficiency (cost) and effectiveness (value). A
challenge for supply chains is the prevention of sub-optimization. In today’s environment, global
supply chains compete against global supply chains, which means that the cost and value at the
end of the supply chain are critical. This is another reason why supply chain collaboration is so
important. All the members of a supply chain need to appreciate and understand the challenges
and issues along the supply chain.
Organizational Relationships
Supply chain management emphasizes a horizontal process orientation that cuts across
traditional functional silos within organizations and necessitates collaboration with external
vendors, customers, transportation companies, 3PLs, and other service providers in the supply
chain. In other words, internal collaboration or cooperation with marketing, sales, operations or
manufacturing, and accounting or finance is very important as well as collaboration or
cooperation with external organizations.
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Chapter 1: Supply Chain Management: An Overview
Communication is critical to explain the opportunities for system tradeoffs that will make the
supply chain more competitive. For example, the vice president of manufacturing may present a
rationale for operating plants on a 24/7 basis to lower production costs, but what about the cost of
warehousing and inventory of goods that have to be stored until sales are finalized? Looking at
manufacturing cost in isolation could lead to higher overall system costs.
Performance Measurement
Most organizations have measures of performance or metrics in place to analyze and evaluate
their efficiency and progress over different time periods. Sometimes, such measures are used for
setting baseline performance objectives or expected outcomes, for example, orders filled and
shipped per day. At this juncture, it is important to recognize that lower-level metrics in an
organization must connect directly to the high-level performance measures of the organization
and the supply chain, which are usually net profit, return on investment, or assets and cash flow.
In some instances, metrics are set that appear logical for the subunit of the organization but are
suboptimal for the overall organization or supply chain. The previous example of the vice
president running the plants 24/7 to achieve the lowest possible unit cost of products could have
been saving 3 cents per unit on manufacturing, but the extra expense of holding excess inventory
could have cost 4 to 5 cents per unit, thus lowering the company’s net profit margin. The
warehouse manager who is measured by the cost per cubic foot of units stored will be motivated
to fill the warehouse to the ceiling (what is the tradeoff cost?). Consequently, the overall financial
metrics of an organization should be the “drivers” of the lower level metrics.
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Chapter 1: Supply Chain Management: An Overview
Technology
Technology, as indicated previously, can be viewed as a change driver, but it is also important as a
facilitator of change that can provide improved efficiency and effectiveness. The challenge is to
evaluate and successfully implement the technology to make the improvements desired. Sometimes
technology is, figuratively speaking, thrown at a problem, which usually leads to frustration and then
failure. The approach necessary is to analyze and then adjust or change processes, educate the
people involved, and then select and implement the technology to facilitate the changes in the
processes. Skipping the first two steps is analogous to the frequently cited bad approach to strategic
planning—ready, fire, aim. The technology available today is almost overwhelming, but analysis and
planning are necessary to achieve the expected outcomes. Technology cannot solve or mitigate
problems without appropriate up-front analysis and planning.
Transportation Management
Transportation can be viewed as the glue that helps the supply chain system function. The critical
outcomes of the supply chain are “TO DELIVER THE RIGHT PRODUCT AT THE RIGHT TIME,
IN THE RIGHT QUANTITY AND QUALITY, AT THE RIGHT COST, AND TO THE RIGHT
DESTINATION.” Transportation plays an important role in making these “rights” happen. Another
aspect of the importance of transportation is related to some of the strategies that are being used
by companies to remain competitive in today’s economy—for example, just-in-time inventory,
lean logistics and manufacturing, and scheduled and one-day deliveries. The challenge has been
exacerbated by challenges and changes among transportation providers; shortages of drivers,
fuel costs, and changes in driver hour regulations, which have led to what some individuals have
called a transportation crisis or the “perfect storm.” Transportation has gone from being a readily
available commodity to potential users, especially in the 1990s, to today where transportation
service can be scarce in some market areas. A major challenge is the maintenance of the
existing transportation infrastructure (roads, bridges, ports, waterways, tracks, and airports) and
the need to increase capacity to meet the growth in demand. The transportation infrastructure is a
major cause of concern for global supply chains especially for water transportation in the port
areas.
Supply Chain Security
As indicated, safe, reliable delivery of products to customers is expected of the supply chain. In
the past, this was often accepted as a given, but today it is a concern and potential challenge.
Globalization has obviously increased the risk of supply chain disruptions. Consequently,
organizations must be prepared for potential disruption. Terroristic threats have changed some of
the planning and preparation for supply chains that now often include some type of scenario
analysis that can consider possible threats, assess probabilities, and plan for alternatives. This
situation is not likely to improve in the near future, and companies need to be prepared. With
global supply chains, vulnerability is exacerbated by distance and complexity.
Talent Management
As supply chains have become more complex and comprehensive for reasons explicated in this
chapter and subsequent chapters, the criticality of having educated and talented managers
involved in supply chains has attracted much more attention in many organizations. The effort to
attract, develop and maintain the appropriate pool of talent from entry level to executive level is
attracting much more attention. At one time, it was assumed that anyone with experience in
another functional area of the organization (marketing, manufacturing, accounting, etc.) could
easily transition to a position in logistics and/or supply chain management. While that still does
occur, most organizations recognize that the complex and special challenge of 21st-century
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